Question

Please help me fast!!

Answer 1

`y = -(1)/(4)x`

Explanation:

1. The slope-intercept form of a linear equation is
`y = mx + b`, where y = y-coordinate, m = slope, x = x-coordinate, and b = slope.

2. To find the slope, let's take the two points (0,0) and (-40,10). After that, let's plug in the values to their corresponding variable in the formula:
`(y_2-y_1)/(x_2-x_1)`

• 
  `(10-0)/(-40-0)`
• 
  `(10)/(-40)`
• 
  `-(1)/(4)`

3. Since we now know our slope, the equation looks like this so far:
`y = -(1)/(4)x + b`.

4. Because b is the y-intercept, b = 0 because the line intersects the y-axis at (0,0).

5. Now that we have the values of m and b, we plug in them to get the equation of:
`y=-(1)/(4)x`